Tadashi Yanai (born February 7, 1949) is founder and president of Fast Retailing, of which Uniqlo ( “unique clothing”) is a subsidiary. He is routinely ranked as one of the richest men in Japan, and in 2009 was ranked 76th richest man in the world according to Forbes, making him the richest man in Japan with an estimated net worth of $6 billion USD.

Tadashi Tanai is the Founder and Chief Executive Officer of Fast Retailing Co., Ltd. and has an estimated net worth of $15.5 billion as of April 2013. He is the richest person in Japan and 66th among the world’s billionaires, according to Forbes.